This decorative double-hemisphere map was updated with the new astronomical observations of Chirikof and Delisle. The map features the Sea of the West and a Northwest Passage in North America, and a conjectural shape for Australia. The title and dedication cartouches are tucked between the cusps; the hemispheres are supported on the shoulders of two men. The map is surrounded by a decorative rococo-style border, printed from a separate plate as the map.
References: McGuirk #128.
Condition: B+
On a watermarked sheet with minor soiling, a few small spots of foxing, and a short centerfold separation at bottom that has been closed with archival materials.